Home/ Questions/Q 568671
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-13T13:12:48+00:00

4.2. Element and attribute names must be in lower case XHTML documents must use

  • 0

4.2. Element and attribute names must be in lower case

XHTML documents must use lower case for all HTML element and attribute names. This difference is necessary because XML is case-sensitive e.g. <li> and <LI> are different tags.

Source : http://www.w3.org/TR/2002/REC-xhtml1-20020801/diffs.html#h-4.2

But is it also necessary for attributes, properties, values, class and ID for elements.

Upper case and came case should not be used.

What is the benefit of use lowercase for every thing?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    What is the benefit of use lowercase for every thing?

    There are a few good reasons:

    • simplifies implementation; you’ll only have to look for one variant to match a tag, not all its case-sensitive variants, for example
    • easier to type, if needed; humans appreciate things that save them effort
    • one consistent way to do everything
    • lower cognitive overhead about whether this tag should be capitalized or not
    • 0